US6858325B2ExpiredUtilityA1

Organic compound and electroluminescent device using the same

Assignee: CANON KKPriority: May 19, 1997Filed: Oct 9, 2002Granted: Feb 22, 2005

Est. expiryMay 19, 2017(expired)· nominal 20-yr term from priority

Inventors:Akihiro Senoo Yomishi Toshida Kazunori Ueno Seiji Mashimo

H05B 33/14C07C 211/61C09K 11/06Y10S428/917C07C 2603/18H10K 85/633H10K 85/324H10K 50/11H10K 85/636H10K 2102/103H10K 85/615H10K 85/6565H10K 85/6574H10K 85/631H10K 85/6572H10K 85/626H10K 85/6576

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Abstract

An electroluminescent device is formed of a pair of electrodes and an organic compound layer interposed between the electrodes. The organic compound layer is composed of an organic compound represented by the following general formula (1): wherein X is a substituted or unsubstituted arylene group or a substituted or unsubstituted heterocyclic group, each of at least two groups among Ar 1 , Ar 2 , Ar 3 , and Ar 4 is a substituted or unsubstituted fluorenyl group, and the remainder represents a substituted or unsubstituted aryl group.

Claims

exact text as granted — not AI-modified

1. An organic compound represented by the following formula: 
                 
 
     
     
       2. An electroluminescent device comprising a pair of electrodes and an organic compound according to  claim 1  interposed between said electrodes. 
     
     
       3. An organic compound represented by the following formula: 
                 
 
     
     
       4. An electroluminescent device comprising a pair of electrodes and an organic compound according to  claim 3  interposed between said electrodes.

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